Top domains by number of subdomains 1 — 100

# Domain Subdomains Rank IP Region AS Organization
1 outlook.com Domain outlook.com Subdomains 4 000 630 Rank 362 IP 40.97.164.146 Region United States AS 8075 Organization Microsoft Corporation
2 hostedemail.com Domain hostedemail.com Subdomains 2 151 463 Rank 408 051 IP Region AS Organization
3 aol.com Domain aol.com Subdomains 937 312 Rank 125 IP 188.125.72.165 Region Switzerland AS 34010 Organization Yahoo! UK Services Limited
4 wd2go.com Domain wd2go.com Subdomains 867 354 Rank 36 979 IP Region AS Organization
5 amazonaws.com Domain amazonaws.com Subdomains 730 375 Rank 124 IP 207.171.166.22 Region United States AS 16509 Organization Amazon.com, Inc.
6 tumblr.com Domain tumblr.com Subdomains 516 089 Rank 1 221 IP 66.6.33.159 Region United States AS 26101 Organization Yahoo!
7 gmail.com Domain gmail.com Subdomains 479 017 Rank 47 IP 172.217.17.101 Region United States AS 15169 Organization Google LLC
8 zaq.ne.jp Domain zaq.ne.jp Subdomains 440 759 Rank 185 114 IP 203.216.221.74 Region Japan AS 9607 Organization BroadBand Tower, Inc.
9 co.za Domain co.za Subdomains 389 753 Rank 3 925 IP 206.223.136.173 Region Mauritius AS 6968 Organization ZACR
10 googleusercontent.com Domain googleusercontent.com Subdomains 353 109 Rank 120 287 IP Region AS Organization
11 blogspot.com Domain blogspot.com Subdomains 329 217 Rank 15 852 IP 172.217.17.137 Region United States AS 15169 Organization Google LLC
12 secureserver.net Domain secureserver.net Subdomains 314 712 Rank 58 IP 208.109.192.71 Region United States AS 26496 Organization GoDaddy.com, LLC
13 wordpress.com Domain wordpress.com Subdomains 271 040 Rank 13 043 IP 192.0.78.17 Region United States AS 2635 Organization Automattic, Inc
14 kasserver.com Domain kasserver.com Subdomains 238 691 Rank 5 891 IP 85.13.128.191 Region Germany AS 34788 Organization Neue Medien Muennich GmbH
15 azure.com Domain azure.com Subdomains 165 886 Rank 26 IP 40.126.245.169 Region Australia AS 8075 Organization Microsoft Corporation
16 hinet.net Domain hinet.net Subdomains 158 550 Rank 165 367 IP 202.39.253.9 Region Taiwan AS 3462 Organization Data Communication Business Group
17 hotmail.com Domain hotmail.com Subdomains 151 608 Rank 12 889 IP 204.79.197.212 Region United States AS 8068 Organization Microsoft Corporation
18 telefonica.de Domain telefonica.de Subdomains 144 649 Rank 8 200 IP 213.95.181.12 Region Germany AS 12337 Organization noris network AG
19 barracudanetworks.com Domain barracudanetworks.com Subdomains 137 519 Rank 70 112 IP 64.235.144.132 Region United States AS 15324 Organization Barracuda Networks, Inc.
20 your-server.de Domain your-server.de Subdomains 134 280 Rank 1 393 IP Region AS Organization
21 home.pl Domain home.pl Subdomains 120 292 Rank 389 450 IP 212.85.96.183 Region Poland AS 12824 Organization home.pl S.A.
22 yandex.ru Domain yandex.ru Subdomains 108 617 Rank 338 116 IP 77.88.55.88 Region Russian Federation AS 13238 Organization YANDEX LLC
23 alcatel.com Domain alcatel.com Subdomains 72 726 Rank 82 180 IP 164.109.33.86 Region United States AS 3707 Organization MCI Communications Services, Inc. d/b/a ...
24 dynamics.com Domain dynamics.com Subdomains 71 114 Rank 14 439 IP 23.100.122.175 Region United States AS 8075 Organization Microsoft Corporation
25 rr.com Domain rr.com Subdomains 71 067 Rank 9 585 IP 71.74.186.228 Region United States AS 7756 Organization Time Warner Cable Internet LLC
26 sakura.ne.jp Domain sakura.ne.jp Subdomains 70 769 Rank 98 994 IP 163.43.24.70 Region Japan AS 9370 Organization SAKURA Internet Inc.
27 linode.com Domain linode.com Subdomains 69 710 Rank 41 819 IP 72.14.191.202 Region United States AS 63949 Organization Linode, LLC
28 myqcloud.com Domain myqcloud.com Subdomains 67 836 Rank 16 886 IP Region AS Organization
29 yahoo.com Domain yahoo.com Subdomains 65 058 Rank 4 328 IP 98.138.219.232 Region United States AS 36646 Organization Yahoo
30 blogspot.mx Domain blogspot.mx Subdomains 60 608 Rank 45 186 IP 172.217.17.105 Region United States AS 15169 Organization Google LLC
31 sgvps.net Domain sgvps.net Subdomains 60 169 Rank 386 299 IP 181.224.128.6 Region United States AS 32475 Organization SingleHop LLC
32 ono.com Domain ono.com Subdomains 57 645 Rank 446 IP 62.42.230.17 Region Spain AS 6739 Organization Vodafone Ono, S.A.
33 cloudfront.net Domain cloudfront.net Subdomains 57 627 Rank 12 244 IP Region AS Organization
34 weebly.com Domain weebly.com Subdomains 56 083 Rank 47 866 IP 74.115.50.110 Region United States AS 27647 Organization Weebly, Inc.
35 optonline.net Domain optonline.net Subdomains 54 832 Rank 42 608 IP 167.206.148.154 Region United States AS 6128 Organization Cablevision Systems Corp.
36 blogfa.com Domain blogfa.com Subdomains 54 042 Rank 3 454 IP 172.64.195.2 Region United States AS 13335 Organization Cloudflare Inc
37 comcastbusiness.net Domain comcastbusiness.net Subdomains 50 096 Rank 52 948 IP 165.160.15.20 Region United States AS 19574 Organization Corporation Service Company
38 ovh.net Domain ovh.net Subdomains 46 909 Rank 5 153 IP 213.186.33.6 Region France AS 16276 Organization OVH SAS
39 zeelandnet.nl Domain zeelandnet.nl Subdomains 44 385 Rank 461 054 IP 217.63.91.13 Region Netherlands AS 15542 Organization ZeelandNet BV
40 dreamhost.com Domain dreamhost.com Subdomains 40 801 Rank 30 095 IP 208.113.157.108 Region United States AS 26347 Organization New Dream Network, LLC
41 softether.net Domain softether.net Subdomains 40 777 Rank 4 955 IP 130.158.6.121 Region Japan AS 37917 Organization University of Tsukuba
42 comcast.net Domain comcast.net Subdomains 40 530 Rank 1 354 IP 69.252.80.75 Region United States AS 7922 Organization Comcast Cable Communications, LLC
43 googlevideo.com Domain googlevideo.com Subdomains 40 075 Rank 193 IP 172.217.19.68 Region United States AS 15169 Organization Google LLC
44 fu-berlin.de Domain fu-berlin.de Subdomains 38 192 Rank 1 111 IP 160.45.170.10 Region Germany AS 680 Organization Verein zur Foerderung eines Deutschen Fo...
45 free.fr Domain free.fr Subdomains 37 713 Rank 5 055 IP 212.27.48.10 Region France AS 12322 Organization Free SAS
46 ocn.ne.jp Domain ocn.ne.jp Subdomains 35 695 Rank 713 IP 153.254.170.142 Region Japan AS 2914 Organization NTT America, Inc.
47 google.com Domain google.com Subdomains 35 469 Rank 99 041 IP 172.217.17.46 Region United States AS 15169 Organization Google LLC
48 quadranet.com Domain quadranet.com Subdomains 35 248 Rank 166 996 IP 198.55.111.55 Region United States AS 8100 Organization QuadraNet, Inc
49 fastwebnet.it Domain fastwebnet.it Subdomains 34 995 Rank 382 426 IP Region AS Organization
50 mailanyone.net Domain mailanyone.net Subdomains 32 264 Rank 420 IP 72.35.23.196 Region Canada AS 3561 Organization Savvis
51 myshopify.com Domain myshopify.com Subdomains 31 289 Rank 496 959 IP 23.227.38.32 Region Canada AS 62679 Organization Shopify, Inc.
52 verizon.net Domain verizon.net Subdomains 31 072 Rank 6 IP 192.16.31.26 Region United States AS 14153 Organization MCI Communications Services, Inc. d/b/a ...
53 cox.net Domain cox.net Subdomains 29 811 Rank 25 770 IP 45.60.106.167 Region United States AS 19551 Organization Incapsula Inc
54 sulinet.hu Domain sulinet.hu Subdomains 29 766 Rank 6 518 IP 193.6.241.86 Region Hungary AS 1955 Organization KIFU (Governmental Info Tech Development...
55 charter-business.net Domain charter-business.net Subdomains 29 560 Rank 592 565 IP 64.210.232.200 Region United States AS 20115 Organization Charter Communications
56 livejournal.com Domain livejournal.com Subdomains 29 438 Rank 518 365 IP 81.19.74.4 Region Russian Federation AS 24638 Organization Rambler Internet Holding LLC
57 asuscomm.com Domain asuscomm.com Subdomains 29 233 Rank 75 499 IP 5.129.219.12 Region Russian Federation AS 50923 Organization Metroset
58 hosteurope.de Domain hosteurope.de Subdomains 29 154 Rank 98 648 IP 80.237.128.168 Region Germany AS 20773 Organization Host Europe GmbH
59 mailguard.com.au Domain mailguard.com.au Subdomains 29 120 Rank 9 631 IP 174.36.192.11 Region United States AS 36351 Organization SoftLayer Technologies Inc.
60 tmall.com Domain tmall.com Subdomains 27 868 Rank 398 IP 140.205.130.99 Region China AS 37963 Organization Hangzhou Alibaba Advertising Co.,Ltd.
61 telecomitalia.it Domain telecomitalia.it Subdomains 26 910 Rank 520 999 IP 156.54.82.96 Region Italy AS 20746 Organization Telecom Italia
62 totbb.net Domain totbb.net Subdomains 25 982 Rank 14 216 IP Region AS Organization
63 inmotionhosting.com Domain inmotionhosting.com Subdomains 25 980 Rank 137 080 IP 192.145.237.216 Region United States AS 22611 Organization InMotion Hosting, Inc.
64 sky.com Domain sky.com Subdomains 24 600 Rank 831 IP 90.216.128.5 Region United Kingdom AS 5607 Organization Sky UK Limited
65 mit.edu Domain mit.edu Subdomains 23 832 Rank 226 IP 104.103.141.126 Region Netherlands AS 20940 Organization Akamai International B.V.
66 sover.net Domain sover.net Subdomains 21 982 Rank 988 464 IP 209.198.87.27 Region United States AS 5738 Organization SoVerNet, Inc.
67 on.net Domain on.net Subdomains 21 720 Rank 25 979 IP 150.101.140.197 Region Australia AS 4739 Organization Internode Pty Ltd
68 elasticbeanstalk.com Domain elasticbeanstalk.com Subdomains 21 146 Rank 9 IP 52.216.32.10 Region United States AS 16509 Organization Amazon.com, Inc.
69 inet.fi Domain inet.fi Subdomains 20 962 Rank 628 533 IP Region AS Organization
70 mail.ru Domain mail.ru Subdomains 20 854 Rank 213 665 IP 217.69.139.201 Region Russian Federation AS 47764 Organization Limited liability company Mail.Ru
71 squarespace.com Domain squarespace.com Subdomains 19 613 Rank 4 551 IP 198.185.159.177 Region United States AS 53831 Organization Squarespace, Inc.
72 ucom.ne.jp Domain ucom.ne.jp Subdomains 19 159 Rank 1 140 IP Region AS Organization
73 telekom.hu Domain telekom.hu Subdomains 18 597 Rank 28 790 IP 212.51.65.65 Region Hungary AS 5513 Organization T-Mobile Hungary Telecommunications Comp...
74 uiowa.edu Domain uiowa.edu Subdomains 18 498 Rank 26 402 IP 54.163.225.50 Region United States AS 14618 Organization Amazon.com, Inc.
75 persianblog.ir Domain persianblog.ir Subdomains 18 309 Rank 5 304 IP 46.224.2.224 Region Iran AS 56402 Organization Dadeh Gostar Asr Novin P.J.S. Co.
76 herokudns.com Domain herokudns.com Subdomains 18 054 Rank 452 323 IP Region AS Organization
77 1e100.net Domain 1e100.net Subdomains 16 833 Rank 2 228 IP Region AS Organization
78 bezeqint.net Domain bezeqint.net Subdomains 16 457 Rank 36 992 IP 212.179.240.156 Region Israel AS 8551 Organization Bezeq International
79 charter.com Domain charter.com Subdomains 16 425 Rank 152 972 IP 142.136.168.58 Region United States AS 3456 Organization Time Warner Cable
80 usgovcloudapi.net Domain usgovcloudapi.net Subdomains 16 193 Rank 836 IP Region AS Organization
81 duckdns.org Domain duckdns.org Subdomains 15 715 Rank 21 987 IP 54.213.176.83 Region United States AS 16509 Organization Amazon.com, Inc.
82 gvt1.com Domain gvt1.com Subdomains 15 181 Rank 657 721 IP Region AS Organization
83 proline.net.ua Domain proline.net.ua Subdomains 14 834 Rank 889 270 IP 194.187.130.142 Region Ukraine AS 35530 Organization Proline TM Ltd.
84 list-manage.com Domain list-manage.com Subdomains 14 598 Rank 449 009 IP 205.201.132.96 Region United States AS 14782 Organization The Rocket Science Group, LLC
85 kent.ac.uk Domain kent.ac.uk Subdomains 14 497 Rank 990 472 IP 129.12.10.249 Region United Kingdom AS 786 Organization Jisc Services Limited
86 012.net.il Domain 012.net.il Subdomains 14 062 Rank 1 749 IP 192.118.8.145 Region Israel AS 9116 Organization B Communications Ltd
87 homeserver.com Domain homeserver.com Subdomains 14 009 Rank 147 606 IP 207.46.232.182 Region Singapore AS 8075 Organization Microsoft Corporation
88 jimdo.com Domain jimdo.com Subdomains 13 749 Rank 2 089 IP 151.101.194.2 Region United States AS 54113 Organization Fastly
89 sth.nz Domain sth.nz Subdomains 13 674 Rank 959 420 IP 120.138.16.20 Region New Zealand AS 45179 Organization SiteHost New Zealand
90 umanitoba.ca Domain umanitoba.ca Subdomains 13 189 Rank 236 723 IP 130.179.16.50 Region Canada AS 17001 Organization University of Manitoba
91 myshn.net Domain myshn.net Subdomains 13 172 Rank 485 136 IP Region AS Organization
92 accenture.com Domain accenture.com Subdomains 13 151 Rank 229 446 IP 170.248.56.9 Region United States AS 3573 Organization Accenture LLP
93 stanford.edu Domain stanford.edu Subdomains 12 572 Rank 200 239 IP 171.67.215.200 Region United States AS 32 Organization Stanford University
94 ox.ac.uk Domain ox.ac.uk Subdomains 12 541 Rank 105 487 IP 129.67.242.155 Region United Kingdom AS 786 Organization Jisc Services Limited
95 ni.net.tr Domain ni.net.tr Subdomains 12 358 Rank 2 412 IP 159.253.40.22 Region Turkey AS 51559 Organization Netinternet Bilisim Teknolojileri AS
96 over-blog.com Domain over-blog.com Subdomains 12 269 Rank 2 226 IP 195.20.13.122 Region France AS 43424 Organization PROCEAU s.a.r.l.
97 ctinets.com Domain ctinets.com Subdomains 12 009 Rank 190 850 IP Region AS Organization
98 hostgator.com Domain hostgator.com Subdomains 12 007 Rank 509 925 IP 52.77.199.193 Region Singapore AS 16509 Organization Amazon.com, Inc.
99 mihanblog.com Domain mihanblog.com Subdomains 11 956 Rank 34 525 IP 5.144.133.146 Region Iran AS 59441 Organization Noavaran Shabakeh Sabz Mehregan Company ...
100 dlinkddns.com Domain dlinkddns.com Subdomains 11 909 Rank 13 576 IP 162.88.179.70 Region United States AS 33517 Organization Oracle Corporation